Recombinant Human Protein FAM19A4/FAM19A4

Instruction Manual!

Product name:	Recombinant Human Protein FAM19A4/FAM19A4
Source:	E. coli
Purity:	Greater than 95% as determined by reducing SDS-PAGE.
Buffer Formulation:	Lyophilized from a 0.2 μm filtered solution of 20mM PB,150mM NaCl, pH7.4.
Applications:	Applications:SDS-PAGE; WB; ELISA; IP.
Storage:	Avoid repeated freeze/thaw cycles. Store at 2-8 oC for one month. Aliquot and store at -80 oC for 12 months.
UOM:	100ug/50ug/200ug/1mg/1g

Source	E. coli
Description	Recombinant Human FAM19A44 is produced by our E.coli expression system and the target gene encoding Ser35-Arg140 is expressed with a 6His tag at the N-terminus.
Names	Protein FAM19A4，Chemokine-like protein TAFA-4，TAFA4，family with sequence similarity 19 (chemokine (C-C motif)-like), member A4, FAM19A4, chemokine-like protein TAFA-4
Accession #	Q96LR4
Formulation	Lyophilized from a 0.2 μm filtered solution of 20mM PB,150mM NaCl, pH7.4.
Shipping	The product is shipped at ambient temperature.
Reconstitution	Always centrifuge tubes before opening. Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100 μg/ml. Dissolve the lyophilized protein in ddH2O. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.
Storage	Lyophilized protein should be stored at < -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 4-7°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.
Purity	Greater than 95% as determined by reducing SDS-PAGE.
Endotoxin	Less than 0.1 ng/µg (1 IEU/µg) as determined by LAL test.
Amino Acid Sequence	MGSSHHHHHHSSGLVPRGSHMSSQHLRGHAGHHQIKQGTCEVVAVHRCCNKNRIEERSQTVKCSC FPGQVAGTTRAQPSCVEASIVIQKWWCHMNPCLEGEDCKVLPDYSGWSCSSGNKVKTTKVTR
Background	FAM19A4 is a secreted, 12 kDa member of the FAM19/TAFA family of chemokine-like proteins. Like other members of the FAM19/TAFA family, with the exception of TAFA5, mature FAM19A4 contains 10 regularly spaced cysteine residues. The FAM19A4 proteins are predominantly expressed in specific regions of the brain and the biological functions of FAM19A4 family members remain to be determined, but there are a few tentative hypotheses. First, FAM19A4 may modulate immune responses in the CNS by functioning as brain specific chemokines, and may act with other chemokines to optimize the recruitment and activity of immune cells in the CNS. Second, FAM19A4 may represent a novel class of neurokines that act as regulators of immune nervous cells. And third, FAM19A4 may control axonal sprouting following brain injury.